For an experiment on the impacts of the pesticide carbaryl and the presence of a predator, the red-spotted, newt on tadpole survival the tadpoles were placed into four different groups of tubs: water only and no predator water only with a predator visible pesticide dosed water with no predator pesticide dosed water with a predator visible it was observed that tadpoles in the water only tubs had a 90+% survival rate regardless of the presence of a predator. the tadpoles in the pesticide dosed water however were strongly divided with 90+% of tadpoles surviving when there was no predator present and less than 20% surviving in the presence of a predator. does this experiment demonstrate interaction between the two treatments?

cannabis

explanation:

(assuming this is the us) google it. law states you can't have weed.

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.

d - failures.

the only attempted british colony in north america before 1600 was roanoke, virginia, which was a total failure. england claimed several areas, including newfoundland, but made no sustainable attempts to colonize them before 1600.

answer; all of the above are correct;